When you start the program a button is presented for each dicionary installed (2 pdbs each). 
The user selects the dicionary that he pretends to use.
A word can then be entered to search for (a minimum 2 letters).
The search initiates when the user presses the Search button.
The search is interrupted if a predefined number of hits is reached and an ellipsis (...) is added at the end of the result.
A search can take from 1 to 10 seconds to conclude being that in a small number of occasions it will take even longer.
After the search has concluded there are 4 buttons that are selectively available to scroll the result.

There are no options neither preferences to select.
